Home / 9,138.29-12,610.82-4,946.54

Finding the Fourth Proportional to 9,138.29, 12,610.82 and 4,946.54

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Solution

The fourth proportional to 9,138.29, 12,610.82 and 4,946.54 is: 6,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.29 : 12,610.82 = 4,946.54 : x
  2. Step 2: Convert to fraction form
    9,138.29/12,610.82 = 4,946.54/x
  3. Step 3: Cross multiply
    9,138.29x = 12,610.82 × 4,946.54
  4. Step 4: Simplify right side
    9,138.29x = 62,379,874.88
  5. Step 5: Solve for x
    x = 62,379,874.88/9,138.29
  6. Step 6: Final answer
    x = 6,826.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.